Double-exciton component of the cyclotron spin-flip mode in a quantum Hall ferromagnet
arXiv:0803.2208 · doi:10.1103/PhysRevB.78.115302
Abstract
We report on the calculation of the cyclotron spin-flip excitation (CSFE) in a spin-polarized quantum Hall system at unit filling. This mode has a double-exciton component which contributes to the CSFE correlation energy but can not be found by means of a mean field approach. The result is compared with available experimental data.
9 pages, 2 figures